Robust face recognition with structural binary gradient patterns

Weilin Huang, Hujun Yin

Abstract: Highlights•A compact and efficient face image descriptor, termed Binary Gradient Patterns (BGP), is proposed.•Structural BGP extracts structural gradient patterns as binary strings in local regions for effective representation.•BGP and its enhanced BGPM are shown robust to various variations, esp. illumination.•Experimental results demonstrate significant performance improvements over the existing methods, including with deep networks.